"Dit, Dat, and Dot," Teg said, naming the puppets of the Winter Show from his childhood on long-ago Lernaeus.
Teg felt his awareness being blocked off by the machine. Yar was doing something at the console. Still, Teg knew his own Mentat logic had told him something vital:
These three were puppets. Only the puppet masters were important. How the puppets moved - that told you what the puppet masters were doing.
("Heretics of Dune", Frank Herbert)